Mollie O’Callaghan Scorches To New 200 Free SCM World Record In 1:49.36

2025 WORLD AQUATICS SWIMMING WORLD CUP – Toronto

• October 23-25, 2025
• Toronto, Canada
• SCM (25 meters)
• Meet Central
• Psych Sheets
• Live Results
• Recaps
  • Prelims: Day 1 | Day 2
  • Finals: Day 1 | Day 2

Women’s 200m Freestyle — Finals

• World Record: 1:49.77 — Mollie O’Callaghan, Australia (2025)
• World Junior Record: 1:51.62 — Claire Weinstein, United States (2024)
• World Cup Record: 1:49.77 — Mollie O’Callaghan, Australia (2025)
• Triple Crown Contender: Mollie O’Callaghan (AUS)

Top 8 Finishers:

1. Mollie O’Callaghan (AUS) – 1:49.36 WR
2. Lani Pallister (AUS) – 1:51.75
3. Erika Fairweather (NZL) – 1:52.71
4. Freya Colbert (GBR) – 1:53.06
5. Marrit Steenbergen (NED) – 1:53.53
6. Brittany Castelluzzo (AUS) – 1:53.88
7. Hannah Casey (AUS) – 1:54.54
8. Caitlin Deans (NZL) – 1:55.43

Mollie O’Callaghan delivered a second stunning World Record in the women’s 200 free within seven days, soaring to a new standard of 1:49.36 en route to a dominant win in the event in Toronto.

She had climbed to #3 all-time with a swim of 1:50.77 two weeks ago in Carmel, before lowering her best by exactly a second to reset the World, World Cup, U.S. Open, Australian, Oceanian, and Commonwealth Records in Westmont last week. That swim was the first in history under the 1:50 barrier, one which withstood serious assaults by Sarah Sjoestroem and Siobhan Haughey, and O’Callaghan is already challenging the next barrier.

She was 1:49.36 tonight, nearly a second ahead of #2 performer Haughey and more than two seconds ahead of her teammate and silver medalist Lani Pallister, who matched her personal best to the hundredth in 1:51.75.

O’Callaghan was out well ahead of the field, three quarters of a second up after the first 50 meters, and only extended that advantage through the race. She was ahead of World Record pace from the off, and was faster on every split bar the final 50 – where she was a single hundredth slower.

Split Comparison

She improves her lead over the rest of the world, remaining at #1 all-time but now alone on the mountaintop in the event.

Top 10 Women’s SCM 200 Freestyle Performers All-Time

1. Mollie O’Callaghan (AUS) – 1:49.36, 2025
2. Siobhan Haughey (HKG) – 1:50.31, 2021
3. Sarah Sjoestroem (SWE) – 1:50.43, 2017
4. Federica Pellegrini (ITA) – 1:51.17, 2009
5. Katinka Hosszu (HUN)- 1:51.18, 2014
6. Li Bingjie (CHN) – 1:51.25, 2022
7. Ariarne Titmus (AUS) – 1:51.38, 2018
8. Mary-Sophie Harvey (CAN) – 1:51.49, 2024
9. Yang Junxuan (CHN) – 1:51.61, 2022
10. Claire Weinstein (USA) – 1:51.62, 2024

After suffering a relatively severe looking injury to her thumbnail just before the 100 free final last weekend, O’Callaghan looks fully recovered and a dangerous prospect for Triple Crown contender Kate Douglass in that event tomorrow night. O’Callaghan took the Triple Crown in the 200 free with her swim here, taking home the $10,000 bonus as well as the $10,000 World Record award.

After Lani Pallister and Kaylee McKeown set new Australian Records in the 400 free and 50 back respectively last night, the Aussie contingent look to be firing on all cylinders so far in Toronto. As the reigning long course World Champion in the event and the fastest active swimmer following the retirement of Ariarne Titmus, O’Callaghan looks to only be getting better. That should be a frightening prospect for her competitors.